FedEx is working with them only because of the grant, also Walmart is just trying to Change there image lol that's also why they purchased all of those futuristic semis this year. When compare how much a the start of cost is for a hydrogen fuel cell vs's the conventional you'd see how much of a ripoff it is.
Cost per hydrogen battery 11k hydrogen storage tank/ equipment 220k "maintenance on all of that 13.5k per a year" ....
Conventional battery cost 4k Charger 3k Maintenance $500 per year or 0 with maintenance free